ATSAMV71Q21B-AABT

{
  "schema_version": 1,
  "type": "component",
  "slug": "atsamv71q21b-aabt",
  "title": "ATSAMV71Q21B-AABT",
  "brief": "Microchip Tech Pre-ordered MCUs, LQFP-144(20x20). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "embedded processors & controllers",
    "atsamv71q21b-aabt",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ATSAMV71Q21B-AABT",
    "manufacturer": "Microchip Tech",
    "package": "LQFP-144(20x20)",
    "pin_count": 144,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Pre-ordered MCUs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/ae8bad555c24b2ade4f4f9b466599a10.pdf",
    "parts": {
      "symbol": "atsamv71q21b-aabt.kicad_sym",
      "footprint": "atsamv71q21b-aabt.kicad_mod",
      "model_3d": "atsamv71q21b-aabt-hero.glb",
      "model_3d_plain": "atsamv71q21b-aabt-etched.glb",
      "model_3d_step": "atsamv71q21b-aabt-etched.step",
      "model_3d_step_plain": "atsamv71q21b-aabt.step",
      "lbr": "atsamv71q21b-aabt.lbr"
    },
    "distributor_links": {
      "lcsc": "C612782",
      "digikey": "150-ATSAMV71Q21B-AABTTR-ND",
      "mouser": "579-ATSAMV71Q21BAABT"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T01:26:00Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "150-ATSAMV71Q21B-AABTTR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "579-ATSAMV71Q21BAABT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PD0",
        "type": "bidirectional",
        "description": "PIO line on VDDIO (GPIO_AD) with extra DAC1, A GTXCK, B PWMC1_PWML0, C SPI1_NPCS1, D DCD0; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "2",
        "name": "PD31",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A QIO3, B UTXD3, C PCK2, D ISI_D11; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "3",
        "name": "VDDOUT",
        "type": "power_out",
        "description": "Voltage regulator output on the VDDOUT power rail."
      },
      {
        "number": "4",
        "name": "PE0",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra AFE1_AD11, A D8, B TIOA9, C I2SC1_WS; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "5",
        "name": "VDDIN",
        "type": "power_in",
        "description": "Voltage regulator input, also supplying the ADC, DAC and analog comparator; must be at the same level as VDDIO."
      },
      {
        "number": "6",
        "name": "PE1",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A D9, B TIOB9, C I2SC1_DO; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "7",
        "name": "PE2",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A D10, B TCLK9, C I2SC1_DI; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "8",
        "name": "VREFN",
        "type": "power_in",
        "description": "Negative reference voltage input for the analog converters, on the GND rail."
      },
      {
        "number": "9",
        "name": "VREFP",
        "type": "power_in",
        "description": "Positive reference voltage input for the AFE and DAC, which must rise simultaneously with VDDIO and VDDIN."
      },
      {
        "number": "10",
        "name": "PE3",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra AFE1_AD10, A D11, B TIOA10; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "11",
        "name": "PC0",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra AFE1_AD9, A D0, B PWMC0_PWML0; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "12",
        "name": "PC27",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra AFE1_AD8, A A9, B TIOB4, C SPI1_MOSI; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "13",
        "name": "PC26",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra AFE1_AD7, A A8, B TIOA4, C SPI1_MISO; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "14",
        "name": "PC31",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra AFE1_AD6, A A13, B TCLK5; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "15",
        "name": "PC30",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra AFE1_AD5, A A12, B TIOB5, C SPI1_NPCS3; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "16",
        "name": "PC29",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra AFE1_AD4, A A11, B TIOA5, C SPI1_NPCS2; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "17",
        "name": "PC12",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra AFE1_AD3, A NCS3, B TIOB8, C CANRX1; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "18",
        "name": "PC15",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra AFE1_AD2, A NCS1/SDCS, B PWMC0_PWML3; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "19",
        "name": "PC13",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra AFE1_AD1, A NWAIT, B PWMC0_PWMH3; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "20",
        "name": "PB1",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra AFE1_AD0/RTCOUT1, A PWMC0_PWMH1, B GTSUCOMP, C TXD0, D TK; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "21",
        "name": "PB0",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra AFE0_AD10/RTCOUT0, A PWMC0_PWMH0, C RXD0, D TF; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "22",
        "name": "PA20",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra AFE0_AD9/WKUP10, B PWMC0_PWML1, C A16, D I2SC1_CK; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "23",
        "name": "PA19",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra AFE0_AD8/WKUP9, B PWMC0_PWML0, C A15, D I2SC1_MCK; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "24",
        "name": "PA18",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra AFE0_AD7, A PWMC1_PWMEXTRG1, B PCK2, C A14; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "25",
        "name": "PA17",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra AFE0_AD6, A QIO2, B PCK1, C PWMC0_PWMH3; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "26",
        "name": "PB2",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra AFE0_AD5, A CANTX0, C CTS0, D SPI0_NPCS0; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "27",
        "name": "PE4",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra AFE0_AD4, A D12, B TIOB10; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "28",
        "name": "PE5",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra AFE0_AD3, A D13, B TCLK10; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "29",
        "name": "VDDCORE",
        "type": "power_in",
        "description": "Core supply powering the core, embedded memories and peripherals; must not exceed VDDIN and VDDIO."
      },
      {
        "number": "30",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Supply for peripheral I/O lines, backup part, 1 Kbyte backup SRAM, 32 kHz oscillator and oscillator pads; 3.0V to 3.6V for USB operation."
      },
      {
        "number": "31",
        "name": "PB3",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra AFE0_AD2/WKUP12, A CANRX0, B PCK2, C RTS0, D ISI_D2; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "32",
        "name": "PA21",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra AFE0_AD1/PIODCEN2, A RXD1, B PCK1, C PWMC1_PWMFI0; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "33",
        "name": "VDDCORE",
        "type": "power_in",
        "description": "Core supply powering the core, embedded memories and peripherals; must not exceed VDDIN and VDDIO."
      },
      {
        "number": "34",
        "name": "PD30",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra AFE0_AD0, A UTXD3, D ISI_D10; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "35",
        "name": "PA7",
        "type": "bidirectional",
        "description": "Clock-type PIO line on VDDIO with extra XIN32 (32.768 kHz oscillator input) and B PWMC0_PWMH3; resets as PIO in HiZ."
      },
      {
        "number": "36",
        "name": "PA8",
        "type": "bidirectional",
        "description": "Clock-type PIO line on VDDIO with extra XOUT32 (32.768 kHz oscillator output), A PWMC1_PWMH3, B AFE0_ADTRG; resets as PIO in HiZ."
      },
      {
        "number": "37",
        "name": "PA22",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra PIODCCLK, A RK, B PWMC0_PWMEXTRG1, C NCS2; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "38",
        "name": "PC1",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A D1, B PWMC0_PWML1; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "39",
        "name": "PC2",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A D2, B PWMC0_PWML2; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "40",
        "name": "PC3",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A D3, B PWMC0_PWML3; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "41",
        "name": "PC4",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A D4; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "42",
        "name": "PA13",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra PIODC7, A QIO0, B PWMC0_PWMH2, C PWMC1_PWML1; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "43",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Supply for peripheral I/O lines, backup part, 1 Kbyte backup SRAM, 32 kHz oscillator and oscillator pads; 3.0V to 3.6V for USB operation."
      },
      {
        "number": "44",
        "name": "GND",
        "type": "power_in",
        "description": "Ground for the voltage regulator, core and peripheral I/O lines."
      },
      {
        "number": "45",
        "name": "PA16",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A D15, B TIOB1, C PWMC0_PWML2, D I2SC0_DI; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "46",
        "name": "PA23",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A SCK1, B PWMC0_PWMH0, C A19, D PWMC1_PWML2; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "47",
        "name": "PD27",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A PWMC0_PWML3, B SPI0_NPCS3, C TWD2, D ISI_D8; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "48",
        "name": "PC7",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A D7, B TCLK6; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "49",
        "name": "PA15",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A D14, B TIOA1, C PWMC0_PWML3, D I2SC0_WS; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "50",
        "name": "VDDCORE",
        "type": "power_in",
        "description": "Core supply powering the core, embedded memories and peripherals; must not exceed VDDIN and VDDIO."
      },
      {
        "number": "51",
        "name": "PA14",
        "type": "bidirectional",
        "description": "Clock-type PIO line on VDDIO with extra WKUP8/PIODCEN1, A QSCK, B PWMC0_PWMH3, C PWMC1_PWMH1; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "52",
        "name": "PD25",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A PWMC0_PWML1, B SPI0_NPCS1, C URXD2, D ISI_VSYNC; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "53",
        "name": "PD26",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A PWMC0_PWML2, B TD, C UTXD2, D UTXD1; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "54",
        "name": "PC6",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A D6, B TIOB6; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "55",
        "name": "PD24",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A PWMC0_PWML0, B RF, C TCLK11, D ISI_HSYNC; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "56",
        "name": "PA24",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A RTS1, B PWMC0_PWMH1, C A20, D ISI_PCK; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "57",
        "name": "PD23",
        "type": "bidirectional",
        "description": "Clock-type PIO line on VDDIO with A PWMC0_PWMH3; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "58",
        "name": "PC5",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A D5, B TIOA6; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "59",
        "name": "PA25",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A CTS1, B PWMC0_PWMH2, C A23, D MCCK; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "60",
        "name": "PD22",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A PWMC0_PWMH2, B SPI0_SPCK, C TIOB11, D ISI_D0; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "61",
        "name": "GND",
        "type": "power_in",
        "description": "Ground for the voltage regulator, core and peripheral I/O lines."
      },
      {
        "number": "62",
        "name": "PA26",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A DCD1, B TIOA2, C MCDA2, D PWMC1_PWMFI1; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "63",
        "name": "PD21",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A PWMC0_PWMH1, B SPI0_MOSI, C TIOA11, D ISI_D1; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "64",
        "name": "PA11",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra WKUP7/PIODC5, A QCS, B PWMC0_PWMH0, C PWMC1_PWML0; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "65",
        "name": "PD20",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A PWMC0_PWMH0, B SPI0_MISO, C GTSUCOMP; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "66",
        "name": "PA10",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra PIODC4, A UTXD0, B PWMC0_PWMEXTRG0, C RD; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "67",
        "name": "PD19",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A NCS3, B CTS2, C UTXD4; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "68",
        "name": "PA12",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra PIODC6, A QIO1, B PWMC0_PWMH1, C PWMC1_PWMH0; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "69",
        "name": "PD18",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A NCS1/SDCS, B RTS2, C URXD4; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "70",
        "name": "PA27",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A DTR1, B TIOB2, C MCDA3, D ISI_D7; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "71",
        "name": "PD28",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra WKUP5, A URXD3, C TWCK2, D ISI_D9; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "72",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Supply for peripheral I/O lines, backup part, 1 Kbyte backup SRAM, 32 kHz oscillator and oscillator pads; 3.0V to 3.6V for USB operation."
      },
      {
        "number": "73",
        "name": "PA5",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra WKUP4/PIODC2, A PWMC1_PWML3, B ISI_D4, C URXD1; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "74",
        "name": "PD17",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A GTXER, B SCK2; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "75",
        "name": "PA9",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra WKUP6/PIODC3, A URXD0, B ISI_D3, C PWMC0_PWMFI0; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "76",
        "name": "PC28",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A A10, B TCLK4, C SPI1_NPCS1; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "77",
        "name": "PA4",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra WKUP3/PIODC1, A TWCK0, B TCLK0, C UTXD1; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "78",
        "name": "PD16",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A GTX3, B TXD2; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "79",
        "name": "PB6",
        "type": "bidirectional",
        "description": "System I/O line on VDDIO whose default function is SWDIO/TMS (serial wire debug I/O / test mode select), selectable via CCFG_SYSIO; resets as PIO input with Schmitt trigger."
      },
      {
        "number": "80",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Supply for peripheral I/O lines, backup part, 1 Kbyte backup SRAM, 32 kHz oscillator and oscillator pads; 3.0V to 3.6V for USB operation."
      },
      {
        "number": "81",
        "name": "VDDCORE",
        "type": "power_in",
        "description": "Core supply powering the core, embedded memories and peripherals; must not exceed VDDIN and VDDIO."
      },
      {
        "number": "82",
        "name": "PC8",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A NWR0/NWE, B TIOA7; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "83",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Active-low microcontroller reset input/output on VDDIO; resets as input with pull-up."
      },
      {
        "number": "84",
        "name": "PD14",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A GRXCK; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "85",
        "name": "TST",
        "type": "input",
        "description": "Test select input for JTAG boundary scan manufacturing test or Fast Flash Programming mode, with a permanent pulldown of about 15 kOhm to GND so it can be left unconnected in normal operation."
      },
      {
        "number": "86",
        "name": "PC9",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A NANDOE, B TIOB7; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "87",
        "name": "PB12",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra ERASE, A PWMC0_PWML1, B GTSUCOMP, D PCK0; resets as PIO input with pull-down and Schmitt trigger."
      },
      {
        "number": "88",
        "name": "PD13",
        "type": "bidirectional",
        "description": "Clock-type PIO line on VDDIO with A GCOL; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "89",
        "name": "PB7",
        "type": "bidirectional",
        "description": "System I/O line on VDDIO whose default function is SWCLK/TCK (serial wire clock / test clock), selectable via CCFG_SYSIO; resets as PIO input with Schmitt trigger."
      },
      {
        "number": "90",
        "name": "PC10",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A NANDWE, B TCLK7; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "91",
        "name": "PA3",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra PIODC0, A TWD0, B LONCOL1, C PCK2; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "92",
        "name": "PD12",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A GRX3, B CANTX1, C SPI0_NPCS2, D ISI_D6; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "93",
        "name": "PA2",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra WKUP2, A PWMC0_PWMH1, C DATRG; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "94",
        "name": "PC11",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A NRD, B TIOA8; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "95",
        "name": "GND",
        "type": "power_in",
        "description": "Ground for the voltage regulator, core and peripheral I/O lines."
      },
      {
        "number": "96",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Supply for peripheral I/O lines, backup part, 1 Kbyte backup SRAM, 32 kHz oscillator and oscillator pads; 3.0V to 3.6V for USB operation."
      },
      {
        "number": "97",
        "name": "PC14",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A NCS0, B TCLK8, C CANTX1; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "98",
        "name": "PD11",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A GRX2, B PWMC0_PWMH0, C GTSUCOMP, D ISI_D5; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "99",
        "name": "PA1",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra WKUP1, A PWMC0_PWML0, B TIOB0, C A18, D I2SC0_CK; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "100",
        "name": "PC16",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A A21/NANDALE; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "101",
        "name": "PD10",
        "type": "bidirectional",
        "description": "MLB-type PIO line on VDDIO with A GCRS, B PWMC0_PWML0, C TD, D MLBSIG; resets as PIO input with pull-down and Schmitt trigger."
      },
      {
        "number": "102",
        "name": "PA0",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra WKUP0, A PWMC0_PWMH0, B TIOA0, C A17, D I2SC0_MCK; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "103",
        "name": "PC17",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A A22/NANDCLE; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "104",
        "name": "JTAGSEL",
        "type": "input",
        "description": "JTAG selection input, active high, selecting JTAG boundary scan when high, with a permanent pulldown of about 15 kOhm to GND so it can be left unconnected in normal operation."
      },
      {
        "number": "105",
        "name": "PB4",
        "type": "bidirectional",
        "description": "MLB-type PIO line on VDDIO with extra TDI, A TWD1, B PWMC0_PWMH2, C MLBCLK, D TXD1; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "106",
        "name": "PD15",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A GTX2, B RXD2, C NWR1/NBS1; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "107",
        "name": "VDDCORE",
        "type": "power_in",
        "description": "Core supply powering the core, embedded memories and peripherals; must not exceed VDDIN and VDDIO."
      },
      {
        "number": "108",
        "name": "PD29",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with no alternate or peripheral function listed; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "109",
        "name": "PB5",
        "type": "bidirectional",
        "description": "MLB-type PIO line on VDDIO with extra TDO/TRACESWO/WKUP13, A TWCK1, B PWMC0_PWML0, C MLBDAT, D TD; resets as output with pull-up."
      },
      {
        "number": "110",
        "name": "PD9",
        "type": "bidirectional",
        "description": "Clock-type PIO line on VDDIO with A GMDIO, B PWMC0_PWMFI2, C AFE1_ADTRG; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "111",
        "name": "PC18",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A A0/NBS0, B PWMC0_PWML1; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "112",
        "name": "PA28",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A DSR1, B TCLK1, C MCCDA, D PWMC1_PWMFI2; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "113",
        "name": "PD8",
        "type": "bidirectional",
        "description": "Clock-type PIO line on VDDIO with A GMDC, B PWMC0_PWMFI1, D TRACECLK; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "114",
        "name": "PA6",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with B PCK0, C UTXD1; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "115",
        "name": "GND",
        "type": "power_in",
        "description": "Ground for the voltage regulator, core and peripheral I/O lines."
      },
      {
        "number": "116",
        "name": "PA30",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra WKUP11, A PWMC0_PWML2, B PWMC1_PWMEXTRG0, C MCDA0, D I2SC0_DO; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "117",
        "name": "PC19",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A A1, B PWMC0_PWMH2; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "118",
        "name": "PA31",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A SPI0_NPCS1, B PCK2, C MCDA1, D PWMC1_PWMH2; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "119",
        "name": "PD7",
        "type": "bidirectional",
        "description": "Clock-type PIO line on VDDIO with A GRXER, B PWMC1_PWMH3, C TRACED3, D RI2; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "120",
        "name": "PC20",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A A2, B PWMC0_PWML2; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "121",
        "name": "PD6",
        "type": "bidirectional",
        "description": "Clock-type PIO line on VDDIO with A GRX1, B PWMC1_PWML3, C TRACED2, D DSR2; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "122",
        "name": "PC21",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A A3, B PWMC0_PWMH3; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "123",
        "name": "VDDPLL",
        "type": "power_in",
        "description": "Supply for PLLA and the fast RC oscillator; its level must not vary more than 0.6V from VDDCORE."
      },
      {
        "number": "124",
        "name": "PC22",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A A4, B PWMC0_PWML3; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "125",
        "name": "PD5",
        "type": "bidirectional",
        "description": "Clock-type PIO line on VDDIO with A GRX0, B PWMC1_PWMH2, C TRACED1, D DTR2; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "126",
        "name": "PD4",
        "type": "bidirectional",
        "description": "Clock-type PIO line on VDDIO with A GRXDV, B PWMC1_PWML2, C TRACED0, D DCD2; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "127",
        "name": "PC23",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A A5, B TIOA3; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "128",
        "name": "PD3",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A GTX1, B PWMC1_PWMH1, C UTXD4, D RI0; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "129",
        "name": "PA29",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A RI1, B TCLK2; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "130",
        "name": "PC24",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A A6, B TIOB3, C SPI1_SPCK; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "131",
        "name": "PD2",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A GTX0, B PWMC1_PWML1, C SPI1_NPCS3, D DSR0; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "132",
        "name": "PD1",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A GTXEN, B PWMC1_PWMH0, C SPI1_NPCS2, D DTR0; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "133",
        "name": "PC25",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with A A7, B TCLK3, C SPI1_NPCS0; resets as PIO input with pull-up and Schmitt trigger."
      },
      {
        "number": "134",
        "name": "VDDUTMII",
        "type": "power_in",
        "description": "USB transceiver interface supply that must be connected to VDDIO and be 3.0V to 3.6V for USB operation."
      },
      {
        "number": "135",
        "name": "GND",
        "type": "power_in",
        "description": "Ground for the voltage regulator, core and peripheral I/O lines."
      },
      {
        "number": "136",
        "name": "HSDM",
        "type": "bidirectional",
        "description": "USB high-speed data minus line (D-) on the VDDUTMII rail."
      },
      {
        "number": "137",
        "name": "HSDP",
        "type": "bidirectional",
        "description": "USB high-speed data plus line (D+) on the VDDUTMII rail."
      },
      {
        "number": "138",
        "name": "GND",
        "type": "power_in",
        "description": "Ground for the voltage regulator, core and peripheral I/O lines."
      },
      {
        "number": "139",
        "name": "VDDUTMIC",
        "type": "power_in",
        "description": "USB transceiver core supply, which must always be connected even if USB is not used, with its level within 0.6V of VDDCORE."
      },
      {
        "number": "140",
        "name": "VBG",
        "type": "passive",
        "description": "Bandgap voltage pin listed as an input with no further function described."
      },
      {
        "number": "141",
        "name": "PB8",
        "type": "bidirectional",
        "description": "Clock-type PIO line on VDDIO with extra XOUT (main crystal oscillator output); resets as PIO in HiZ."
      },
      {
        "number": "142",
        "name": "PB9",
        "type": "bidirectional",
        "description": "Clock-type PIO line on VDDIO with extra XIN (main crystal oscillator input); resets as PIO in HiZ."
      },
      {
        "number": "143",
        "name": "VDDPLLUSB",
        "type": "power_in",
        "description": "Supply for the UTMI PLL and the 3 MHz to 20 MHz oscillator; must be 3.0V or higher for USB operation."
      },
      {
        "number": "144",
        "name": "PB13",
        "type": "bidirectional",
        "description": "PIO line on VDDIO with extra DAC0 output, A PWMC0_PWML2, B PCK0, C SCK0; resets as PIO input with pull-up and Schmitt trigger."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: MPN suffix AA with package Q (144 pins) maps to the 144-lead LQFP. Pins are taken from the LQFP Pin ; Table 6-1 gives no LQFP pin number for GNDANA, GNDUTMI, GNDPLLUSB and GNDPLL (shown as '-'). They we",
          "3/144 pins cited to the wrong page (name found elsewhere): ['80:VDDIO@p33', '81:VDDCORE@p34', '115:GND@p34']"
        ],
        "pages_sent": 97,
        "cost_usd": 0.2199,
        "at": "2026-10-27T01:24:55"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/ae8bad555c24b2ade4f4f9b466599a10.pdf",
        "pages": 1943,
        "sha256": "94ed9d6997caca1c",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 144,
        "described": 144,
        "cites_pages": true,
        "refuses_to_fabricate": true
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      "footprint": "viewers/footprint.html"
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        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "b4d698da8bb7697b754adb5655c932342462d9b9341cdaa081b3604dbdf7559b",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "atsamv71q21b-aabt-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "ef517d754d18b850fa26c6cf69a8df17eb12044e406d74ba050464e570c6b221",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "LQFP-144(20x20)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "144"
    }
  },
  "variants": [],
  "sections": [
    "hero",
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    "readme",
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    "info"
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  "discovery_triggers": [
    "atsamv71q21b-aabt"
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  "discovery_pitch": "ATSAMV71Q21B-AABT (Microchip Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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